/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package info.niwota.webshot.imglist;

import info.niwota.webshot.Debug;

import java.io.File;

import android.content.ContentResolver;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.ParcelFileDescriptor;
import android.util.Log;

public class UriImage implements IImage {
	private static final String TAG = "UriImage";
	final Uri mUri;
	// private final IImageList mContainer;

	private final ContentResolver mContentResolver;

	// private Context ctx;

	public UriImage(ContentResolver cr, Uri uri) {
		// this.ctx = ctx;
		// mContentResolver = ctx.getContentResolver();
		mContentResolver = cr;
		mUri = uri;
	}

	public int getDegreesRotated() {
		return 0;
	}

	// public String getDataPath() {
	// if (mUri.getScheme().equals("file")) {
	// return mUri.getPath();
	// } else {
	// Cursor c = mContentResolver.query(mUri,
	// new String[] { ImageColumns.DATA }, null, null, null);
	// c.moveToFirst();
	// String p = c.getString(0);
	// c.close();
	// return p;
	// }
	// }

	// private InputStream getInputStream() {
	// try {
	// if (Debug.DEBUG) {
	// Log.d(TAG, "getInputStream " + mUri);
	// }
	// if (mUri.getScheme().equals("file")) {
	// return new java.io.FileInputStream(mUri.getPath());
	// } else {
	// return mContentResolver.openInputStream(mUri);
	// }
	// } catch (FileNotFoundException ex) {
	// return null;
	// }
	// }

	private ParcelFileDescriptor getPFD() {
		try {
			if (Debug.DEBUG) {
				Log.d(TAG, "getPFD " + mUri);
			}
			String s = mUri.getScheme();
			if (s.equals("file")) {
				String path = mUri.getPath();
				return ParcelFileDescriptor.open(new File(path),
						ParcelFileDescriptor.MODE_READ_ONLY);
//			} else if (s.equals("sfile")) {
//				return null;
			} else {
				return mContentResolver.openFileDescriptor(mUri, "r");
			}
		} catch (Exception e) {
			return null;
		}
	}

	public Bitmap fullSizeBitmap(int minSideLength, int maxNumberOfPixels) {
		return fullSizeBitmap(minSideLength, maxNumberOfPixels,
				IImage.ROTATE_AS_NEEDED, IImage.NO_NATIVE);
	}

	public Bitmap fullSizeBitmap(int minSideLength, int maxNumberOfPixels,
			boolean rotateAsNeeded) {
		return fullSizeBitmap(minSideLength, maxNumberOfPixels, rotateAsNeeded,
				IImage.NO_NATIVE);
	}

	public Bitmap fullSizeBitmap(int minSideLength, int maxNumberOfPixels,
			boolean x, boolean useNative) {
		try {
			if (Debug.DEBUG) {
				Log.d(TAG, "fullSizeBitmap " + mUri);
			}
			// String s = mUri.getScheme();
			// if (s.equals("sfile")) {
			// InputStream is = makeInputStream(mUri, ctx);
			// Bitmap b = Util.makeBitmap(minSideLength, maxNumberOfPixels,
			// is, useNative);
			// return b;
			// }
			ParcelFileDescriptor input = getPFD();
			Bitmap b = Util.makeBitmap(minSideLength, maxNumberOfPixels, input,
					null);
			return b;
		} catch (Error e) {
			e.printStackTrace();
			Log.e(TAG, "got exception decoding bitmap ", e);
			return null;
		}
	}

//	private InputStream makeInputStream(Uri uri, Context ctx) {
//		try {
//			// sfile schema
//			File file = new File(uri.getPath());
//			Key skey = KeyStore.getKey();
//			InputStream is = CryptoUtils.openInputStream(file, skey);
//			if (Debug.DEBUG) {
//				Log.d(TAG, "makeInputStream " + file + " is: " + is);
//			}
//			return is;
//		} catch (Exception e) {
//			e.printStackTrace();
//		}
//		return null;
//	}

	public Uri fullSizeImageUri() {
		return mUri;
	}

	// public InputStream fullSizeImageData() {
	// return getInputStream();
	// }

	public Bitmap miniThumbBitmap() {
		return thumbBitmap(IImage.ROTATE_AS_NEEDED);
	}

	public String getTitle() {
		return mUri.toString();
	}

	public String getDisplayName() {
		return getTitle();
	}

	public Bitmap thumbBitmap(boolean rotateAsNeeded) {
		return fullSizeBitmap(THUMBNAIL_TARGET_SIZE, THUMBNAIL_MAX_NUM_PIXELS,
				rotateAsNeeded);
	}

	private BitmapFactory.Options snifBitmapOptions() {
		ParcelFileDescriptor input = getPFD();
		if (input == null) {
			return null;
		}
		try {
			BitmapFactory.Options options = new BitmapFactory.Options();
			options.inJustDecodeBounds = true;
			BitmapManager.instance().decodeFileDescriptor(
					input.getFileDescriptor(), options);
			return options;
		} finally {
			Util.closeSilently(input);
		}
	}

	public String getMimeType() {
		BitmapFactory.Options options = snifBitmapOptions();
		return (options != null && options.outMimeType != null) ? options.outMimeType
				: "";
	}

	public int getHeight() {
		BitmapFactory.Options options = snifBitmapOptions();
		return (options != null) ? options.outHeight : 0;
	}

	public int getWidth() {
		BitmapFactory.Options options = snifBitmapOptions();
		return (options != null) ? options.outWidth : 0;
	}

	public long fullSizeImageId() {
		return 0;
	}

	public long getDateTaken() {
		return 0;
	}

	public boolean rotateImageBy(int degrees) {
		return false;
	}
}
